I have; I read your team, and to be honest Wild Charge gives more recoil than worthwhile + no STAB. I would also suggest that Sawsbuck go for Life Orb > Sitrus Berry to do more damage.
As for Synthesis, go for either Return or Swords Dance.
Sawsbuck is too frail to set up/ troll. It's meant to do damage and that's all it's meant to do.